Giúp mình nha mình đang cần gấp
Cảm ơn 
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AN
2
SS
10 tháng 3 2022
\(x\times4+\frac{1}{2}\times x=55,35\)
\(\Leftrightarrow x\times\left(4+\frac{1}{2}\right)=55,35\)
\(\Leftrightarrow x\times4,5=55,35\)
\(\Leftrightarrow x=55,35:4,5\)
\(\Leftrightarrow x=12,3\)
Vậy x= 12,3
10 tháng 3 2022
x.4+1/2.x=55,35
x.(4+1/2)=55.35
x.9/2=55,35
x=55,35:9/2
x=12,3
vì là máy ko có dấu nhân nên thay dấu nhân là dấu chấm
5 tháng 3 2022
a: \(=\left(2a^2-3a^2-4a^2\right)+\left(-0.5a-2.5a+3a\right)+\left(5-4+7\right)=-5a^2+8\)
b: \(=\left(a^3-a^3\right)+\left(-2a^2-3a^2+4a^2\right)+\left(a+a-a\right)+\left(-5+4\right)=-a^2+a-1\)
c: \(=-b^4+3b^2-3b-1-b^3+1-3b^2+b^4-5+4b^3+5\)
\(=3b^3-3b\)
KT
3
giúp mình với mình đang đang cần câu trả lời gấp cho mình gửi lời cảm ơn trước nha help me
23 tháng 2 2022
a: 1-1/2=1/2
b: 1-3/10=7/10
c:3-1/3=8/3
d: 4-1/9=35/9
e: 8-2/3=22/3
f: 5-2/5=23/5
NT
25 tháng 5 2022
a: bằng 1 phần 2
b: bằng 7 phần 10
c: bằng 2 phần 3
d:bằng 35 phần 9
e: bằng 22 phần 3
g: bằng 23 phần 5
chúc bn học tốt
Giúp mình bì này nha mình đang cần gấp cảm ơn các bạn
19 tháng 2 2022
Tổng hai phân số ban đầu là
7/9+1/5=35/45+9/45=44/45
1. I was given a notebook as a reward by my teacher.
2. Grapes are picked and then turned into wine.
3. I wasn't allowed to stay up late by my father.
4. Pencils aren't used in your Maths exam.
5. I was allowed to go picnic with my friends by my parents yesterday.
6. I wasn't told about his story.
7. This cake is made by me.
8. When I was a child, my leg was bitten by a dog.
9. Many social skills are needed when you enter the workplace.
1, I was given a notebook by my teacher as a reward
or A notebook was given to me by my teacher as a reward
2, Grapes are picked and wine is turned into
3, I am not allowed to stay up late by my father
4, pencils are not used in your maths
5, i was not allowed to go picnic with my friends by my parents yesterday
6, i was not told about his story
7, this cake was made by me
8, When I was a kid, my leg was bitten by a dog
9, many social kills are needed when the workplace is entered